Salunke, T. L. . “Comparison of Post-Operative Port Site Pain Following Laparoscopic Cholecystectomy: Umbilical Port Versus Epigastric Port Retrieval”. Journal of Biomedical and Pharmaceutical Research, vol. 11, no. 1, Jan. 2022, http://www.jbpr.in/index.php/jbpr/article/view/1199.